This may works OK enough however it arrived rolled up with packing tape. I had no problem u rolling it and putting weighted boxes in the corners so it would flatten but the residue from the tape has left 10” stripes of glue. It has not been easy to clean off as goop-off etc. is not good for the plastic mat. I have more cleaning to do and it has taken time that I don’t have to devote to this.
We bought this mat for our home office to use over standard residential carpeting in what was designed to be a bedroom. The mat works great so far and looks like it will hold up to regular use. We bought it for my husband's chair so the combined weight on it is likely to be over 230lbs. It was delivered without a box laid flat outside our front door and everything is fine. We are pleased with our purchase.
The mats do what I needed at a good price. No they are not as stable as those costing two or more times as much but they cost two or more times as much as do these. So I'm happy.